diabetes, obesity, heart disease. a healthy diet rich in fruits and vegetables can help prevent chronic disease. >> reporter: seth says he's glad what's for dinner could help his health. >> probably pizza, maybe pasta. >> reporter: his grandfather died from a stroke so he's hoping this new research could prevent one. vinita nair for cbs news, new york. 4:52. that means eight time for the question of the morning-- >> it's time for the question of the morning. >> the average american only spends five seconds doing this even though we're supposed to spend at least a minute doing it. is it a, brushing their teeth, b, washing their hands, or c, chewing their food. log on to the wusa9 facebook fan page. leave your response. well have the answer in the 6:00 show. stay with us.